\documentclass{article}
\usepackage{amssymb,amsmath,amscd,concmath}
\pagestyle{empty}
\begin{document}
\begin{equation*}A = \frac{\frac{1}{2} (A_A + A_A) ^ 2}{A \sqrt{A_A} - A ^ {-1} } * \frac{3}{2} x - A_A\end{equation*}
\end{document}
